Techniques › T1095 › AN1258
AN1258 Analytic 1258
Network Devices · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Non-standard port/protocol pairings or low-entropy ICMP traffic resembling tunneling patterns (e.g., fixed-size pings with delays).</p>
- Detects
- T1095 Non-Application Layer Protocol
- Part of
- DET0457 Detection of Non-Application Layer Protocols for C2
Log sources and channels
Exactly as MITRE states them in x_mitre_log_source_references. Where a channel is vague, it is vague in the source; kevmap does not tidy it.
| Log source | Channel | Data component |
|---|---|---|
| NSM:Firewall | ICMP/UDP protocol anomaly | DC0085 Network Traffic Content |
| NSM:Flow | conn.log, icmp.log | DC0078 Network Traffic Flow |
Mutable elements
Parameters MITRE marks as environment-specific. These are the knobs you are expected to tune; they are why an analytic is not a rule.
| Field | Description |
|---|---|
ProtocolEntropyThreshold | ICMP/UDP packet content entropy filter to identify encoded payloads. |
SessionDurationThreshold | Long ICMP/UDP sessions beyond expected limits (e.g., >5min). |